Port 3306 — MySQL / MariaDB

Q: What is Port 3306 for?…Database. The protocol or service generally associated with this is MySQL / MariaDB….Transport ProtocolTCPSafety precautionsDo not publicly expose unless controlled architecture. Use TLS and network filtering…Should we open this port in the Burt?

Only if a service is actually needed l, use it. Apply the principle of any privilege: limit the authorized sources, destinations and interfaces, and then log connections when relevant.

Q: How do I check this port?

Test-NetConnection SERVER -Port 3306Under Linux, you can use nc -vz SERVER 3306.

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Port3306

TransportTCP

ServiceMySQL / MariaDB

Port 3306….TCP

Connection to MySQL/MariaDB databases….

What is Port 3306 for?…

Database. The protocol or service generally associated with this is MySQL / MariaDB….

Transport Protocol

TCP

Safety precautions

Do not publicly expose unless controlled architecture. Use TLS and network filtering…

Should we open this port in the firewall?

Only if a service is actually needed the use it. Apply the principle of any privilege: limit the authorized sources, destinations and interfaces, and then log connections when relevant.

How do I check this port?

Test-NetConnection SERVER -Port 3306

Under Linux, you can use nc -vz SERVER 3306.

Port/service associations are common conventions. An application can be configured on another port.